Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f24ad5093acefca…

MALICIOUS

PDF

68.7 KB Created: 2021-03-15 05:53:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 0a73edaad178dbcf1c7fe0c236bcb451 SHA-1: b999283fc16b6dd1a9f6d8b0b3b7b7914edec8ed SHA-256: 1f24ad5093acefca1721a0bdeb1bf109522bfd930d04503e26903a24c1e8d406
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier, indicating malicious intent. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the large number of embedded URLs, including one pointing to 'botokaw.ru', suggest the document is designed to redirect users to potentially harmful websites. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://botokaw.ru/123?utm_term=letterland+handwriting+sheets PDF link annotation
    • http://haifaiv.ru/download_song_thukra_ke_mera_pyare34xo.pdfIn PDF document text
    • http://copyright-infringement.business/sejakotixazebovikapiwitn1r.pdfIn PDF document text
    • https://tatogupuragafa.weebly.com/uploads/1/3/4/0/134096405/9ecd450802a246.pdfIn PDF document text
    • https://tivofexogi.weebly.com/uploads/1/3/1/3/131398075/pamawavogud-degusajimix-xoxarisikenojez.pdfIn PDF document text
    • https://jaduxopedarev.weebly.com/uploads/1/3/4/7/134749363/fec0415e.pdfIn PDF document text
    • http://samo-katim.ru/15962020078gif2h.pdfIn PDF document text
    • https://wugeneziwepuzi.weebly.com/uploads/1/3/4/4/134494794/7856110.pdfIn PDF document text
    • http://getsalle.xyz/hueco_tanks_guide_trainingn8s0u.pdfIn PDF document text
    • http://anbieterbewertung-autoscoutch.com/production_process_of_portland_cementhf8x9.pdfIn PDF document text
    • http://blue-tick-central.com/50636185707a9ois.pdfIn PDF document text
    • http://digitalmicroteter.xyz/reality_transurfing_29pf3z.pdfIn PDF document text
    • http://carinsusa.info/videoder_app_for_jio_phoneo4zzq.pdfIn PDF document text
    • http://vebilodugisugod.iblogger.org/over_the_hill_monica_lyrics.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://7ae774ad-b64d-4473-a0b1-aa0db1e39e83.filesusr.com/ugd/3e7897_54f35247ec284a38b3ce30f4de3fcddd.pdf?index=trueIn PDF document text
    • https://14864a69-2465-45da-a912-c6f78a3f99b9.filesusr.com/ugd/409ca8_d88d381a307f44f287fd61aba094eab3.pdf?index=trueIn PDF document text
    • http://daporanil.epizy.com/lekulibekemodasijurari.pdfIn PDF document text
    • http://davirokonal.epizy.com/damavirize.pdfIn PDF document text
    • https://s3.amazonaws.com/tamobalasu/zokera.pdfIn PDF document text
    • https://314f4944-3dd9-45af-b5ee-fc7f46c963e4.filesusr.com/ugd/73cb9e_bf4d8de76fd84efbb8b2332e414dbe0d.pdf?index=trueIn PDF document text
    • http://zelulujo.epizy.com/mifevibuxabexi.pdfIn PDF document text
    • https://s3.amazonaws.com/limewub/repawojodifafexiza.pdfIn PDF document text
    • http://gorulilul.rf.gd/dimoruguzelo.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD107 5120 bytes
SHA-256: 64319f99c3aa090ef5cb9ae18c8c9f1e5aba0ef0150e1194ccad76555613fbd0
font_01_sfnt_off0000e27d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE27D 10196 bytes
SHA-256: 85131f541cc0782798c81aed89b4e296a53313563c0354bca1bfffae5af98acd

Open this report in the interactive analyzer, or submit your own file for analysis.